The google/yahoo difference on my sites is amazing. I'm getting more hits from 4th or 5th page yahoo listings than I'm getting for google 1st page listings. Unfortunately, yahoo has yet to index 90% of my sites.

But the funny thing is, yahoo seems to lose my sites completely. When I follow a yahoo link from my referers... my site is nowhere to be found. It seems that yahoo is doing updates several times a day!